add: file main.cpp

main.cpp

@@ -0,0 +1,87 @@
+#include <iostream>
+#include <vector>
+#include <cmath>
+using namespace std;
+
+const size_t SCREEN_WIDTH = 80;
+const size_t MAX_ASTERISK = SCREEN_WIDTH - 4;
+
+int main() {
+
+    size_t number_count;
+    cerr << "Enter number count: ";
+    cin >> number_count;
+
+    vector<double> numbers(number_count);
+    cerr << "Enter massive elements: ";
+    for (size_t i = 0; i < number_count; i++) {
+        cin >> numbers[i];
+    }
+
+    size_t bin_count;
+    cerr << "Enter bin count: ";
+    cin >> bin_count;
+
+    vector<size_t> bins(bin_count);
+
+    double mini = numbers[0];
+    double maxi = numbers[0];
+    for (double x : numbers) {
+        if (x < mini) {
+            mini = x;
+        }
+        else if (x > maxi) {
+            maxi = x;
+        }
+    }
+
+    double bin_size = (maxi - mini) / bin_count;
+    for (size_t i = 0; i < number_count; i++) {
+        bool found = false;
+        for (size_t j = 0; (j < bin_count - 1) && !found; j++){
+            auto lo = mini + j * bin_size;
+            auto hi = mini + (j + 1) * bin_size;
+            if ((lo <= numbers[i]) && (numbers[i] < hi)) {
+                bins[j]++;
+                found = true;
+            }
+        }
+        if (!found) {
+            bins[bin_count - 1]++;
+        }
+    }
+
+
+
+   size_t max_count = bins[0];
+        for (size_t i = 0; i < bin_count; i++) {
+            if (bins[i]>max_count) {
+             max_count = bins[i];
+            }
+        }
+
+    vector<size_t> height(bin_count);
+    for (size_t i = 0; i < bin_count; i++) {
+        if (max_count > MAX_ASTERISK) {
+            height[i] = round(MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count));
+        } else {
+            height[i]=bins[i];
+        }
+    }
+
+    for (size_t i = 0; i < bin_count; i++) {
+            if (bins[i] < 10) {
+              cout << "  ";
+            } else if (bins[i] < 100) {
+                cout << " ";
+            }
+        cout << bins[i] << "| ";
+
+
+        for (size_t j = 0; j<height[i]; j++) {
+            cout <<" * ";
+        }
+        cout << endl;
+    }
+}
+